Wheeled scraper.



.L P. ROBBINSh WHBELED SGEAPER.

APPLICATION FILED JUNE 24, 1903. @MAMAN Patented Ferm 11,1910.

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WHEELED SGRAPER.

APPLIUATION FILED JUNE 24. leon.

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JOI-IN PROCTOR ROBBINS, OF SAN SABA, TEXAS.

WHEELED ,SCRAPER.

Patented Feb. 1, 1910..

Serial No. 504,164.

To all whom it may concern.

Be it known that l, JOHN Puoc'ron Ro- BINs, a citizen of the UnitedStates, residing at San Saba, in the county of San Saba and State ofllexas, haveinvented certain new and useful Improvements in WheeledScrapers, of which the following is a specilication, reference being hadto the accompanying drawings.

rl`his invention relates to improvements in wheeled Scrapers or shovelsof that class which are dumped by operating their shovel or scoop-likebodies.

The object of the invention is to provide a machine of this characterwhich will be simple, strong, durable and comparatively inexpensive inconstruction and which will be effective in operation and easy tomanipulate.

With the above and other objects in view, the invention consists of thenovel features of construction and the combination and arrangement ofparts hereinafter fully described and claimed, and illustrated in theaccompanying` drawings, in which- Figure 1 is a plan view of my improvedwheeled scraper; Fig. 2 is a vertical longitudinal section showing thescraper in its normal position in full lines and in its dumping positionin dotted lines; Fie: 3 is a vertical section taken on the planeindicated by the line 8 8 in Fig. 1; Fig. 4 is a perspective view of thearched axle; and Fig. 5 is a detail view of one side of the frame.

In the drawings 1 denotes a shovel or scoop-like body mounted to tiltupwardly and forwardly, said mounting being preferably effected bysecuring it in the downwardly arched or offset central portion 2 of across bar which forms the axle for two supporting wheels 3. rlhe ends ofthe bar or axle 2 project horizontally or outwardly in oppositedirections to provide journals 41 on which the wheels 3 are mounted andfrom which also swings a frame 5. Said ends or journaled portions of theaxle, as shown more clearly in Fig. 4 of the drawings, are square incross section and they have cylindrical portions 6 forming spindles forthe wheels 3 and cylindrical portions 7 forming pivots for U-shapedhanger straps 8 which receive and are secured to the rear ends of sidebars 9 of the frame 5. The forward portions of the side bars 9 are bentinwardly toward each other to provide spaced parallel front portions 10,between which latter is secured a draft tongue or pole 11. The framealso comprises a pair of upper side bars 12 disposed longitudinallyabove the rear portions of the side bars 9 and connected to the same byintermediate uprights 13 and upright portions 14 formed by bending thefront ends of the upper side bars 12. Arranged upon the upper side bars19. are hooks 15 with which are adjustably engaged chains 16 connectedto the front ends of the side portions of the scoop body 1. These chainsserve to limit the downward movement of the front scraping edge of thescoop or shovel and are adjustable so that the operation of the devicemay be readily controlled. The rear end of one of the upper side bars 12is curved downwardly to provide a guide 17 for a hand lever 18, whichlatter' is fixed to the square or fiat faced portion of one of the endsof the axle 2 for the purpose of rotating the axle and hence tilting thescoop or shovel body 1. Said hand lever 18 has a recessed enlargement 19on one side to engage and slide upon the curved guide 17, which latteris concentric with the journal portion of the axle and in saidenlargement 19 is arranged a spring projected dog 2O to coact with rackteeth 21 formed upon the upper edge of the forward portion of the guide17. A. retracting lever or bell crank 22 is pivoted, on the upperportion of the hand lever and connected to the pawl in the usual manner.If desired, a drivers seat 23 may be suitably mounted on the frame 5.

Then the machine is to be drawn by two draft animals a doubletree 241 isconnected to the tongue 11 but when four animals are used the leadanimals have their Vswingletrees 25 connected to draft chains or cables26, which latter extend through guide eyes 27 on the side bars 9 andhave hooks 28 which engage openings 29 in the axle 2 and the sides ofthe scoop or shovel 1, as shown in Fig. 1 of the drawings.4 Byconnecting two of the draft animals to the machine in this manner, itwill be seen that they pull from the bottom portion of the scraper.

In operation, assuming the parts to be in their normal position shown infull lines in Fig. 2, when it is desired to dump the shovel or scoo 3 1,it is only necessary to unlock the lever 1 and swing it rearwardlythereby throwing the scoop in an upward and forward direction to thedotted line position shown in said Fig. 2.

lVhile I have shown and described in detail the preferred embodiment ofmy invention, I wish it understood that I do not limit myself to theprecise construction set forth since various changes in the form,proportion and arrangement of parts and in the details of constructionmay be resorted to within the spirit and scope of the invention.

Having thus described the invention what is claimed is:

l. In a machine of the character described, the colnbination of a frame,a downwardly arched or offset axle from which said frame swings,supporting wheels loosely mounted on said axle, a segmental guiding andlocking rack on said frame concentric with said axle, a lever fixed tosaid axle and slidably engaged with said guide and a locking pawlcarried by the lever to co-act with the rack. 2. In a machine of thecharacter described, the combination of a frame having side bars withconverging forward ends, a tongue connected to the latter, a downwardlyoffset or arched axle, hangers hingedly connecting the side bars of theframe to said axle supporting wheels upon the ends of said axle, a scoopupon the arched central portion of the axle, a dumping lever connectedto said axle, guides upon the forward portions of the side bars andflexible draft elements arranged in said guides and having their rearends connected to the scoop.

3. In a machine of the character described, the combination of a frame,a downwardly arched or offset axle, from the end portions of which saidframe swings, supporting wheels rotatably mounted on the extremities ofsaid axle, a scoop fixed to the offset portion of the axle, an uprighthand lever fixed to one end of said axle, a segmental rack on the frameconcentric with said lever,

and a pawl carried by the lever for engagement with said rack.

t. In a. machine of the character described, the combination of aU-shaped frame consisting of parallel lower side bars having forwardlyconverging ends united to a draft tongue, upper side bars havingdepending forward ends secured to the lower side bars, one of theupperside bars having its rear portion downwardly curved and formed withratchet teeth, standards uniting the rear portions of the upper sidebars to the lower side bars, and a transversely disposed seat-carryingbar uniting the forward portions of the upper side bars, a downwardlyarched or offset axle mounted in bearings on the rear ends of the lowerside bars, supporting wheels rotatable on the extremities of said axle,a scoop fixed to the ollset portion of the axle, a flexible elementbetween the frame and scoop to limit the swinging movement of thelatter, an upright hand lever fixed to one end of the axle, and a pawlcarried by sai-d lever for engagement with said ratchet teeth.

In testimony whereof I hereunto affix my l signature in the presence oftwo witnesses.

JOHN IROCTOR ROBBINS.

Titnesses N. It. SLOAN, I). M. FAVER.

